<template>
  <div id="app">
    <div class="login_container">
      <div class="login_box">
        <!-- 头像区域 -->
        <div class="avatar_box">
          <img src="../assets/logo.png" alt>
        </div>
        <!-- 表单区域 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0" class="login_form">
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
          </el-form-item>
          <!-- 按钮 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: "admin",
        password: "123456"
      },
      loginFormRules:{
          username:[
              { required: true, message:'请输入登录名称', trigger: "blur"},
              { min: 3, max: 10, message:"长度在3到10个字符之间", trigger: "blur"}
          ],
          password:[
             { required: true, message:'请输入登录密码', trigger: "blur"},
             { min: 6, max: 15, message:"长度在6到15个字符之间", trigger: "blur"}
          ]
      }
    };
  },
  methods:{
      resetLoginForm(){
          this.$refs.loginFormRef.resetFields()
      },
      login(){
          this.$refs.loginFormRef.validate(async valid => {
             if(!valid) return
          const {data:res} = await this.$http.post("login",this.loginForm)
          if(res.meta.status!==200) return this.$message.error("登录失败")
          this.$message.success("登录成功")
            window.sessionStorage.setItem("token",res.data.token)
            this.$router.push("/home")
          
             })
      }
  }
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  .avatar_box {
    width: 130px;
    height: 130px;
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 50%;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>